Seven problems related to brake hoses, lines/piping, and fittings have been reported for the 1999 GMC Yukon. The most recently reported issues are listed below.
Vehicle has only 21,650 m on it, used mostly on weekends and in the snow in winter. It was doing fine until 9/18/16 when suddenly I noticed my brake was not responding as usual. I had to push the pedal to the floor repeatedly to stop, barely missed hitting the car in front of me. I was on one of my city streets getting back home after grocery shopping. Drove home slowly and very carefully. Had it towed to a nearby gm dealer. He says most of the brake lines and some hoses have rusted, need to be replaced. That would be 15-16 hours labor and will cost me $ 2000. 00. It snows here quite a bit and after the season, I always wash my vehicles with emphasis on the underside to remove the salt and chemicals. Besides, on this vehicle I had to repaint the hood twice, roof once and replace the rear bumper so far- all due to rust. Now my front bumper is showing signs of rust. What's the matter - with all this excessive rusting on this vehicle. I have my other SUV parked right beside this at home and use it in the winter time. It is much older than Yukon and there is no rust problem at all with it. Looks like there is some serious problem with the metal used in this vehicle or lack of quality control. Gm did a bad job with this vehicle. They say there was no recall on this model. Would like to know if I can get compensated by gm for all this hardship. Do not know what else is in store with this vehicle in future. Have to get the brake job done right away but very pricey for my budget. Please check into this problem and let me know how to proceed. Looking forward to hearing from you soon. Thanks, n. Vasudevan.
Brake failure due to rusted through brake lines.
Brake lines are completely corroding. Imminent brake failure.
As I was pulling out of the parking lot of my work, onto a public road, I came to a stop sign. I had brake pedal pressure for about 1 second, then the pedal went to the floor. There was traffic coming from both directions so I became a little nervous. The truck did stop in time though. I knew I had blown a brake line right away. I went back to work and inspected the lines and the rear line had blown apart. This is my second gm vehicle that blew a brake line in the exact same spot on the vehicle. I recently moved to florida, this vehicle has been an ohio vehicle all it life.
While slowly approaching stop sign on the first trip of the day, brakes were slow to respond and pedal depression was more than usual. Stopped on side of the road and had Yukon towed to repair shop. Right front brake line found rusted through. Corrosion found on other three lines,but not as severe as right front. Replaced all four brake lines. Nine years of vehicle mileage accumulated in connecticut, and five in delaware.
Brake line failure due to corrosion of the lines,on my 1999 GMC Yukon 1500 further inspection the entire undersection badly corroded.
The metal hydraulic brake line running from the master cylinder to the passenger side front disc brake assembly ruptured, causing the vehicle to lose its braking power while the vehicle was being driven. This line crosses the front of the vehicle and then runs on top of the frame just under where the battery is located. After inspecting and finding the hole it was very apparent that battery acid/corrosion had dripped onto the line,, causing it to be eaten away. The battery is orginal equipment and maintanance free.